v0.6.2

Summary

• tauri-widgets --version reads package.json (was 0.5.0)
• exports includes ./schemas/*; ./render has CJS + default
• renderWidget does not read location.search at import; group/widgetId are options
• tauri-widgets tools fails clearly on npm installs

Crate + git tag 0.6.2. Publish npm tauri-plugin-widgets-api@0.6.2 after this tag.